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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 1873-1878 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cycloadditions of Cyanothioformamides with 1,3-DipolesThe disubstituted cyanothioformamides 1 add to diazo compounds presumably forming the thiadiazoles 2 which decompose to give the thiiranes 3. These may be desulfurized to the ethylenes 5.1b reacts with diphenylnitrilimine to form the thiadiazoline 6. Nitrile oxides and 1 afford the oxathiazoles 7. The monosubstituted cyanothiaoformamides 8. likewise yield the oxathiazoles 9. which decompose to aryl isothiocyanates and the cyanoformamides 10. The reaction of 1 with phenylazide at 100°C produces the cyanoformamidines 14. probably via the unstable thiatriazolines 11 or 12 and the thiaziridines 13.
    Notes: Die disubstituierten Cyanthioformamide 1 addieren sich an Diazoverbindungen, vermutlich unter Bildung der Thiadiazole 2, die weiter zu den Thiiranen 3 zerfallen. Diese können zu den Ethylenen 5 entschwefelt werden. Mit Diphylnitrilimin bildet 1b das Thiadiazolin 6. Nitriloxide liefern mit 1 die Oxathiazole 7. In gleicher Weise ergeben die monosubstituierten Cyanthioformamide 8 die Oxathiazole 9, die weiter in Arylisothiocyanate und die Cyanformamide 10 zerfallen. Die Reaktion von 1 mit Phenylazid bei 100°C liefert, offenbar über die instabilen Thiatriazoline 11 oder 12 und die Thiaziridine 13, die Cyanformamidine 14.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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